CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 14,647	$ 35,003
Accounts and notes receivable-less allowances of $3,624 and $4,987, respectively	153,519	216,744
Inventory	175,588	159,984
Regulatory assets	130,389	146,327
Other current assets	76,717	103,784
Total current assets	550,860	661,842
Net utility property	5,827,143	5,700,056
Goodwill	52,426	52,426
Non-current regulatory assets	844,767	894,168
Other property and investments-net and other non-current assets	408,574	393,985
Total assets	7,683,770	7,702,477
Current Liabilities:
Accounts payable	104,620	143,262
Current portion of long-term debt	15,000	15,000
Short-term borrowings	244,000	349,000
Regulatory liabilities	94,385	76,007
Other current liabilities	166,761	191,936
Total current liabilities	624,766	775,205
Pensions and other postretirement benefits	92,211	89,830
Deferred income taxes	718,728	718,318
Non-current regulatory liabilities	829,061	856,666
Other non-current liabilities and deferred credits	241,820	210,230
Total liabilities	5,156,531	5,217,154
Commitments and Contingencies (See Notes to Condensed Consolidated Financial Statements)
Shareholders' Equity:
Common stock, no par value; 200,000,000 shares authorized; 78,702,117 and 78,074,587 shares issued and outstanding, respectively	1,666,692	1,644,327
Accumulated other comprehensive loss	(366)	(357)
Retained earnings	860,913	841,353
Total shareholders’ equity	2,527,239	2,485,323
Total liabilities and equity	7,683,770	7,702,477
Non Affiliated Trusts [Member]
Current Liabilities:
Long-term debt	2,598,398	2,515,358
Affiliated Trusts [Member]
Current Liabilities:
Long-term debt	$ 51,547	$ 51,547